On the one hand, you can conduct a popularity vote from people who happen to visit this forum in the near future. On the other hand, you can make a smart choice based on reading years' worth of existing information in this forum from current and former students at each of these schools.
No valid recommendation can be made without knowing what state you are in, and what your stats are.
Cincinnati beats EVMS on cost, unless you're a VA resident. Attending the Cincy program gives you OH residency. With both Cincinnati and EVMS, there's a strong host-school acceptance record, so the bet with these programs is that you either stay put for med school, or you get accepted someplace better-for-you such as a home state public school. Assuming you do great in the program, you can reasonably assume no gap year.
Gtown is a one year program that does *not* have a strong host-school acceptance record. But Gtown has the most well-known name for an SMP. If you are in California, you can't apply the same year as your Gtown year - the UC's won't accept an unfinished asset. If you do not have reasonably strong stats pre-SMP, then assume you need a gap year after completing Gtown.
Tufts can be a 2 year program, where you do an MPH the second year (presumably during your app year). This is the newest of the 4 and has the least public record of results.
You're on a waitlist so you should be all over Tulane ACP as well. It's cheapest and has the highest success rate. Downside: Tulane MD is very expensive, and there's no federal aid for the ACP.
You are responsible for managing an MD app year at the same time you're in an SMP. You should complete AMCAS as close to June 5 as possible and complete your secondaries as soon as you know which SMP you'll be in. Your SMP should provide a letter you can forward to your MD app schools at the beginning of the program, and another letter after first semester grades.
Since you're on waitlists now, you can reasonably assume that a same-year-as-SMP MD app will be a good idea (unless you're in California and want to get into a UC). Note that if you get an MD acceptance during the SMP year, you don't get any SMP money back, and you need your MD school's permission to not complete the SMP.
Best of luck to you.